86 SILPHID. 
rather longer but not broader than the head and thorax, widest at the shoulders, with eight rows of punc- 
tures, and the interstices minutely and remotely punctured ; sides broadly margined ; apex very obtuse. 
Legs very robust ; tibize dilated and spinose, armed with strong apical spurs, the intermediate pair shghtly 
incurved; tarsi 5-, 5-, 4-jointed, with the basal joints slightly dilated. Underparts rufo-castancous. 
Hab. Norru America, North Carolina and district of Columbia !.—Guatema.a, Cerro 
Zunil (Champion). One specimen. 
COLENIS. 
Colenis, Erichson, Naturg. Ins. Deutschl. iii. p. 82 (1845). 
Body generally ovate, not contractile. Head rather large, without antennal grooves beneath. Thorax rather 
small, transverse, generally widest at the base. lytra rather large, entire. Antenne rather short, 11- 
jointed, with the eighth joint nearly as large as the seventh; joints 9-11 forming a moderately incrassated 
club. Palpi with the basal joints of all robust, and the apical joint cylindrical and obtuse. Prosternum 
very small; episterna indistinct ; epimera small, not enclosing the coxal cavities ; coxal cavities large, 
contingent, open in front and behind. Mesosternum moderate, carinated ; episterna rather large, humeral ; 
epimera long and very narrow, extending to the coxal cavities; coxal cavities large, oblong, moderately 
distant. Metasternum very short, not extending to the sides of the body; episterna short and narrow ; 
epimera large, extending beyond the coxe; coxe not contingent. Venter composed of five segments. 
Legs moderate ; tibiee spinose ; tarsi 5-, 4-, 4-jointed. 
Five species of this genus have been described—four from Europe and one from 
North America. Colenis is now known to extend as far south as the State of Panama ; 
two species are here enumerated. 
1. Colenis punctulata, sp. n. 
Ovalis, valde convexa, nitida, piceo-castanea; capite sat lato, minute punctato, interstitiis alutaceis, ore 
flavo; oculis modicis, sat prominentibus; pronoto quam caput longiore et multo latiore, ad basin 
latissimo, minute et confertim punctato, interstitiis alutaceis, superficie transverse undulata, lateribus 
marginatis et leviter rotundatis, margine basali leviter rotundata angulis obtusis, marginibus omnibus dilu- 
tioribus ; elytris semiovalibus, prope humeros latissimis, quam caput atque pronotum longioribus, haud latio- 
ribus, transverse strigosis, punctis distinctis striatim dispositis atque stria suturali ab apice usque ad 
media extensa impressis, lateribus marginatis, apice valde obtuso; pedibus modicis, flavis, tibiis haud 
spinosis, tarsis sat robustis, 5-, 4-, 4-articulatis; antennis sat longis, flavescentibus, clavis elongatis, 
obscuris. Long. corp. +2 lin.=1:25 millim. 
Body oval, very convex, shining, pitchy-castanesus. Head rather broad, minutely punctate, with the 
interstices alutaceous; mouth yellow; eyes moderate, rather prominent; antennw rather long, 
flavescent, with the club elongate and dusky. Thorax longer and much broader than the head, 
widest at the base, minutely and closely punctured, with the interstices alutaceous; surface trans- 
versely undulated ; sides margined and slightly rounded; basal margin slightly rounded, with the angles 
obtuse; all the margins more or less flavescent. Scutellum rather broad, triangular and impunctate. 
Elytra semioval, widest near the shoulders, longer but not broader than the head and thorax, transversely 
strigose, marked with distinct punctures disposed in strive, and an impressed sutural stria extending from 
the apex to the middle; sides margined; apex very obtuse. Legs moderate, yellow ; tibie not spinose ; 
tarsi rather robust, 5-, 4-, 4-jointed. Underparts testaceous. 
Hab. Panama, Bugaba (Champion). One specimen. 
This insect differs from Dr. Horn’s description and figure of C. impunctata (Trans. 
